Sole construction for shoes.



- |6.1. CH-mslANs/ol. soL'E coNsTHucloN FOR sHoEs.

APPLICATION' FILED SEPT. 6. i916.

Patented Ap1. 9, 1918.

@LVM u eamo attac/mm3 CARL JOHAN CHRISTIANSON, 0F SAN JOSE, CALIFORNIA.

SOLE CONSTRUCTION FOR SHOES.

.Specification of Letters Patent.

Patented Apr. 9, 1915.

Application filed September 6, 1916. Serial No. 118,702.

T 0 all whom t may concern.'

Be it known that I, CARL J. CHRISTIAN- soN, a citizen of the United States, residing at San Jose, in the county of Santa' Clara and State of California, have invented new and useful Improvements in Sole Construc tions for Shoes, of which the following is a specification.

rIhis invention .relates to a sole construction for shoes by means of which the interior of the shoe may be properly ventilated, and it has for its primary object to accomplish this result without the possibility of the passage of water into the interior of the shoe.

An object of the invention is the novel manner of spacing the soles by means of a strip, and arranging between the soles a resilient casing for accomplishing a movement of air during the use of the shoe.

A further object of the invention is to so form the casing as to provide a brace for the instep of the foot in connection with the improvements in insole or counter.

TWith these and other objects in view, the invention will be better understood from the following detailed description taken in connection with the accompanying drawing, wherein- Figure 1 is a vertical sectional view of the shoe showing my invention applied thereto;

Fig. 2 is a cross sectional view on the line 22 0f Figxl;

Fig. 3 is a cross sectional view on the line 3-3 of Fig. l;

Fig. a is a perspective view of the casing.

Referring to the drawings, the numeral l designates the. insole of the shoe S shown formed with perforations 2 throughout its entire area. Spaced from the insole l by means of a strip 3 arranged contiguous with the edge portion of the sole 1 is a solid outsole 4. By this arrangement it will be seen that a chamber 5 is formed between the soles with the chamber in communication With the interior of the shoe by means of the perforations 2. If desired, the space between theinsole l and outsole 4 defining the chamber 5 may have arranged therein a hair filling, as shown.

Arranged between the soles is a casing 6 of a length less than the soles, and crescent shape in cross section, and further shaped to form a brace for the instep of the foot. rIhis casing is made of resilient material and the suction when the shoe is in use will create currents of air. Communication is established between the casing and the atmosphere by means of pipes 7 extending through the sides and heel of the shoe and having their protruding ends arranged to be closed by means of caps 8 under certain climatic conditions, the caps being removed in clear weather.

A plurality of wire elements 9 is interposed between the walls of the casing 6, partly filling the space between the walls to prevent the possibility of the two walls coming together under heavy pressure.

From the foregoing description, taken in connection with the accompanying drawings, it should be apparent that I provide a shoe construction which is admirably adapted for the purpose for which it is intended, and which is simple, durable and eflicient of construction, and may be manufactured and sold at a comparatively low cost.

Having thus described my invention, I claim:

A shoe, comprising in combination with a perforated insole, an auxiliaryinflatable insole, of crescent formation in cross section, the inflatable insole being positioned beneath the perforated insole and having the adjacent wall thereof provided with orifices disposed in alinement with the perfor-ations of' said insole. spaced substantially parallel wire elements positioned between the walls of the inflatable insole to maintain the latter properly spaced, and a plurality of tubes projecting from the sides and rear end portion of the auxiliary insole and terminating exteriorlyof the shoe to establish communication between the atmosphere and said inflatable insole for the purpose described.

In testimony whereof I affiX my signature.

CARL JOHAN CHRISTIANSON. 

